Extensible Marine Patents (Class 104/114)
  • Patent number: 9248997
    Abstract: The present disclosure relates to a hydraulic system for a crane with at least one hydraulic circuit, which comprises at least one hydraulic consumer, and a constant pressure network, wherein the at least one hydraulic circuit is coupled with the constant pressure network via at least one pressure reducer, whereby a higher volume flow with low pressure as compared to the constant pressure network can be generated in the hydraulic circuit.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: February 2, 2016
    Assignee: Liebherr-Werk Nenzing GmbH
    Inventors: Christof Gassner, Markus Schwarzhans
  • Patent number: 6755239
    Abstract: Methods for making various titanium base alloys and titanium aluminides into engineering components such as rings, tubes and pipes by melting of the alloys in a vacuum or under a low partial pressure of inert gas and subsequent centrifugal casting of the melt in the graphite molds rotating along its own axis under vacuum or low partial pressure of inert gas are provided, the molds having been fabricated by machining high density, high strength ultrafine grained isotropic graphite, wherein the graphite has been made by isostatic pressing or vibrational molding, the said molds either revolving around its own horizontal or vertical axis or centrifuging around a vertical axis of rotation.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: June 29, 2004
    Assignee: Santoku America, Inc.
    Inventors: Ranjan Ray, Donald W. Scott
  • Patent number: 6435795
    Abstract: A tubular post is erected from a retracted position in the deck of a load receiving ship to accommodate load transfer operation. A highline connection established by an automated rigging technique substantially reduces manpower requirements, with all receiving station equipment stowed below deck for watertight integrity and to minimize radar cross-section.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: August 20, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David J. Brady
  • Patent number: 4750430
    Abstract: An automatic control system for operating the inhaul and overhaul winches of a high line transfer system automatically changes the velocity of a trolley between set landing and set transfer velocities and between set landing and set terminal velocities at a constant rate with respect to distance. Digital and graphic displays of trolley distance from a receiver ship and a supply ship and a graphic display of trolley velocity relative to the ship it is approaching are provided.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: June 14, 1988
    Assignee: Hagglunds Denison Corporation
    Inventors: Walter E. Morton, Rudolf U. Scharte
  • Patent number: 4739721
    Abstract: This invention relates to a boat designed as a self-hoisting unit for the vertical and horizontal transfer of persons and/or equipment from a ship to an offshore platform and vice versa. The boat carries a hollow mast forming a guide for a cable, the upper end of which will be attached to a carrier structure extending outwardly from a platform or ship. The mast is held by shrouds so as to withstand large flexural strains. For compensating sea-swell, the lower end of the cable passes over a damper unit comprising an hydraulic cylinder associated with pulleys of two opposed tackle-blocks. The cable is driven by a winch so that the boat can autonomously hoist itself to the platform deck level, or lower itself down to the sea or onto the deck of a ship. The mast height is sufficient for generating an uprighting torque ensuring horizontal stability of the boat during its ascent and descent.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: April 26, 1988
    Inventor: Xavier Peyre
  • Patent number: 4630542
    Abstract: The nacelle (3) is characterized in that it includes at least one cable (6) having a top end that leaves the nacelle upwardly and a bottom end that leaves the nacelle downwardly, and a mechanism (11) enabling the nacelle to move up and down the cable when the top end of the cable is hooked to a hook unit (4). A mechanism enables the top portion of the cable to be subjected to a tension greater than the weight of the nacelle while the bottom portion (7) of the cable is fixed to an anchor point, said tensioning mechanism serving to vary the distance between the nacelle (3) and said hook unit at the top end of the cable. Further, mechanism (12, 14) acts on command, on said tensioning mechanism in such a manner as to prevent the distance between the nacelle (3) and the hook unit (4) at the top end of the cable from shortening while not preventing it from lengthening.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: December 23, 1986
    Assignee: Alsthom-Atlantique and Plastibenne
    Inventors: Xavier M. Peyre, Jean-Pierre Manesse
  • Patent number: 4348960
    Abstract: An aerial cableway for transferring personnel/goods between a vessel and a fixed installation at sea, consisting of a support cable stretched between the vessel and the fixed installation. A winch provided with a slippage device maintains constant tension in the support cable which, by means of a securing member, is releasably attached to a complementary securing member on the vessel. A gondola is suspended from a trolley on the support cable. A pulling line attached to the trolley controls hauling the gondola up and down the support cable between the vessel and the fixed installation by means of a pulling winch on the fixed installation. The fixed installation is provided with an outrigger at the outer end of which the securing member for the support cable is fastened so as to be able to be raised and lowered by means of a hoisting cable which is maneuverable from the fixed installation.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: September 14, 1982
    Assignee: Westamarin A/S
    Inventor: Erik Staurseth